Seiko Cal. 3870 - 645

This Kinetic model from 1973 features a 35mm Titanium case. Powered by the 3870 caliber with 30j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-0b2365909af2]

Also known as: Sumo, Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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